CVE-2021-22555 – Linux Foundation / Linux kernel – Out-of-bounds write
CVE-2021-22555 is an out-of-bounds write vulnerability impacting Linux kernel versions 5.11 and earlier. An exploit was observed in open source and a link to an exploit was shared in the underground.
Summary:
CVE-2021-22555 is an out-of-bounds write vulnerability impacting Linux kernel versions 5.11 and earlier. An exploit was observed in open source and a link to an exploit was shared in the underground.
PoC Links(if available):
Packet Storm exploit –
https://packetstormsecurity.com/files/163528/Linux-Kernel-Netfilter-Heap-Out-Of-Bounds-Write.html
Known Counter Measures:
The Linux Foundation addressed the vulnerability in a software development platform with a patch.
Links to patches(if available)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=b29c457a6511435960115c0f548c4360d5f4801d
